US20070047030A1 - Method for controlling a printing presses - Google Patents

Method for controlling a printing presses Download PDF

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Publication number
US20070047030A1
US20070047030A1 US11/512,659 US51265906A US2007047030A1 US 20070047030 A1 US20070047030 A1 US 20070047030A1 US 51265906 A US51265906 A US 51265906A US 2007047030 A1 US2007047030 A1 US 2007047030A1
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US
United States
Prior art keywords
prepress
sensor
characteristic value
printing process
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/512,659
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English (en)
Inventor
Michael Schonert
Alfons Schuster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Assigned to MAN ROLAND DRUCKMASCHINEN AG reassignment MAN ROLAND DRUCKMASCHINEN AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHONERT, MICHAEL, SCHUSTER, ALFONS
Publication of US20070047030A1 publication Critical patent/US20070047030A1/en
Assigned to MANROLAND AG reassignment MANROLAND AG CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: MAN ROLAND DRUCKMASCHINEN AG
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/02—Arrangements of indicating devices, e.g. counters

Definitions

  • the invention relates to a method for controlling printing processes.
  • the control of printing processes is normally carried out by using print control marks printed onto the printed product, which are measured with the aid of sensors. Actual values determined from the print control marks are compared with desired values for the print control marks, in order to determine, on the basis of this comparison, actuating signals for the printing process to be regulated.
  • Print control marks of this type which are printed onto the printed product outside the actual printed image or subject, are disruptive in particular in newspaper printing, since in newspaper printing the printed product is not trimmed and, accordingly, the print control marks are visible in the end product. Therefore there is a need for control methods for printing processes which operate without such print control marks and accordingly mark-free.
  • DE 42 37 004 C2 discloses a control method operating mark-free for controlling the ink density in a printed product.
  • the printed image from the printed product is measured directly with sensors.
  • actual values determined are compared with desired values which are based on image data or prepress data.
  • U.S. Pat. No. 6,779,454 discloses a method likewise operating mark-free for cut register control on a press, wherein prepress-based desired values are also used for the control of the printing process.
  • an object of the present invention is to provide a novel a method for controlling printing processes.
  • a method for controlling a printing process in a printing press by means of cut register control, ink register control or ink density control comprises the steps of measuring a printed image with at least one sensor thereby determining at least one actual characteristic value of the printed image; determining at least one prepress-based desired characteristic value for the printed image from prepress print image data by taking into account data about characteristics of the at least one sensor; comparing the at least one actual characteristic value of the printed image with the at least one prepress-based desired characteristic value thereby acquiring a control deviation; and determining an actuating signal based on the control deviation for adjusting the printing process.
  • each prepress-based desired characteristic value is determined from the prepress print image data, from data about the characteristics of the sensor and from data about the characteristics of the printing process.
  • a desired printed image determined by means of prepress print image data may be converted into an intermediate image while taking into account the characteristics of the respective sensor and the characteristics of the printing process, the respective desired characteristic value for the control being determined on the basis of the intermediate image.
  • the characteristics of the respective sensor that are used comprise at least one of a gray scale resolution, a color step resolution, a spectral sensitivity, a geometric resolution and a measuring speed of the sensor.
  • the characteristic of the printing process that is used is the speed of the printing process.
  • FIG. 1 is a schematic block diagram illustrating a preferred embodiment of the method according to the invention.
  • FIG. 1 shows in schematic form the structure of a control loop to carry out the method according to the invention for controlling a printing process.
  • the printing process can comprise, for example, cut register control, ink register control or ink density control.
  • the controlled printing system performing the printing process is represented in FIG. 1 by block 10 , wherein at least one controllable variable of the printing process is measured by at least one sensor 8 which can be integrated in the printing system 10 .
  • the sensor 8 preferably measures characteristics of the printed image and provides corresponding signal 11 . This signal 11 indicates an actual characteristic value of the printed image and thus of the printing process.
  • the sensor 8 can be, for example, a contrast sensor, a CCD line camera or CCD area camera, a CMOS line camera or CMOS area camera, or a fibre optic sensor.
  • the actual characteristic value is compared in a comparing device 7 with a desired characteristic value indicated by a signal 12 , thereby determining a control deviation 13 , the control deviation 13 being fed as input variable to a controller 14 which, on the basis of the control deviation 13 and a control regulation, generates as output variable an actuating variable 15 or actuating signal, which is used as input variable for the printing system 10 to control the printing process.
  • control method operates mark-free, that is without the use of print control marks printed onto the product to be produced.
  • the sensor 8 for measuring the printed product and therefore for providing the actual characteristic value accordingly measures the printed image of the printed product directly, the actual characteristic value provided in this case being compared with the desired characteristic value in form of a prepress-based desired characteristic value.
  • a computing device 9 determines in a computing device 9 the prepress-based desired characteristic value firstly on the basis of prepress print image data 16 of the print image to be printed and secondly on the basis of data 17 including characteristics of the sensor 8 which provides the actual characteristic value the desired characteristic value is compared with.
  • the data 17 can also contain data about characteristics of the printing process to be controlled, which are then likewise taken into account when providing or determining the desired characteristic value.
  • data 18 for an intermediate image are generated in the computing device 9 , the volume of the data 18 of the intermediate image being reduced as compared with the prepress print image data 16 of the print image to be printed and containing only that part of the data from the prepress print image data 16 which can be determined or detected by the sensor 8 .
  • the computing device 9 can determine data 19 that are relevant to the control of the printing process and can be used as desired characteristic value for the control of the printing process.
  • the desired characteristic value for controlling the printing process is accordingly derived from prepress print image data 16 from the print image or subject to be printed, specifically while taking into account data 17 about the characteristics of the sensor 8 used and, if appropriate, about the characteristics of the printing process.
  • the actual characteristic value provided by the sensor 8 is thus compared with a desired characteristic value adapted to the sensor 8 , which value contains only that data which can be detected by the sensor 8 on the printed product during the printing process. This makes it possible to restrict the quantity of data to be handled without impairing the achievable control quality.
  • the characteristics of a sensor 8 that can be taken into account are a gray scale resolution, a color scale resolution, a spectral sensitivity, a geometric resolution and a measuring speed of the sensor 8 .
  • the gray scale resolution or the color scale resolution and the spectral sensitivity of the sensor 8 are taken into account when determining an appropriate desired characteristic value in that the prepress print image data 16 are filtered.
  • geometric scaling of the prepress print image data 16 can be carried out.
  • geometric scaling of the prepress print image data 16 is also carried out in order to determine an appropriate desired characteristic value.
  • prepress print image data 16 from the print image to be printed are then converted into data 18 for the intermediate image. As already mentioned, this is carried out by means of filtering and geometric scaling of the prepress print image data 16 .
  • the sensor 8 used is not able to detect certain colors from the prepress print image data 16 on account of its spectral sensitivity, these spectral ranges are filtered out when generating the data 18 for the intermediate image.
  • specific structural elements of a print image can be filtered out of the prepress print image data, in particular when the resolution of the sensor 8 is lower than the resolution of the prepress print image data.
  • the quantity of data can be reduced further, so that ultimately the data 18 from the intermediate image, from which the appropriate desired characteristic value is determined, are adapted to the receiving characteristics of the sensor 8 used.
  • the method according to the invention can be used in all printing processes which are to be controlled without using print control marks to be printed onto a printed product, and accordingly mark-free.
  • the prepress print image data 16 can be adapted on the basis of the characteristics of the sensor 8 used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Ink Jet (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
US11/512,659 2005-08-31 2006-08-30 Method for controlling a printing presses Abandoned US20070047030A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005041179.7 2005-08-31
DE102005041179A DE102005041179A1 (de) 2005-08-31 2005-08-31 Verfahren zur Regelung von drucktechnischen Prozessen

Publications (1)

Publication Number Publication Date
US20070047030A1 true US20070047030A1 (en) 2007-03-01

Family

ID=37308886

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/512,659 Abandoned US20070047030A1 (en) 2005-08-31 2006-08-30 Method for controlling a printing presses

Country Status (7)

Country Link
US (1) US20070047030A1 (ja)
EP (1) EP1759845B1 (ja)
JP (1) JP2007062374A (ja)
KR (1) KR20070026087A (ja)
CN (1) CN1931578A (ja)
CA (1) CA2557680A1 (ja)
DE (1) DE102005041179A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130184134A1 (en) * 2010-06-29 2013-07-18 Futec Inc. Box producing apparatus, inspection unit, and print register control method for a box producing apparatus
US20140090569A1 (en) * 2012-09-28 2014-04-03 Fujifilm Corporation Printing relief plate, printing relief plate producing apparatus, printing apparatus, printing pressure determining apparatus, and methods therefor

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007016981A1 (de) * 2007-04-10 2008-10-16 Maschinenfabrik Wifag Verfahren zum Messen der Farbqualität im Rollendruck
DE102008023961A1 (de) * 2008-05-16 2009-11-19 Manroland Ag Verfahren zur Regelung von drucktechnischen Prozessen
ES2395182B1 (es) 2011-08-12 2013-11-28 Comexi Group Industries, Sau Método para controlar la operación de una máquina impresora y máquina impresora flexográfica para su implementación.
DE102012020911A1 (de) * 2011-11-11 2013-05-16 Heidelberger Druckmaschinen Ag Färbungswächter für Druckmaschinen
CN103182836A (zh) * 2013-03-29 2013-07-03 广西南宁市万豪佳鑫纸业有限责任公司 一种具有含水量检测能力的印刷机系统
DE102019110853B4 (de) * 2019-04-26 2022-05-12 Koenig & Bauer Ag Bogenbearbeitungsmaschine und Verfahren zur Inspektion zumindest eines verbliebenen und von einer Formgebungseinrichtung bearbeiteten Teils zumindest eines Bogens
DE102019110854A1 (de) * 2019-04-26 2020-10-29 Koenig & Bauer Ag Verfahren zur Inspektion zumindest eines Bogens und Vorrichtungen zur Inspektion zumindest eines Bogens

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6050192A (en) * 1993-06-25 2000-04-18 Heidelberger Druckmaschinen Ag Process and arrangement for controlling or regulating operations carried out by a printing machine
US20010024293A1 (en) * 2000-02-24 2001-09-27 Johan Ville Image data compression
US6422142B2 (en) * 1998-01-27 2002-07-23 Man Roland Druckmaschinen Ag Ink regulation device for a painting machine
US20020104457A1 (en) * 2000-12-06 2002-08-08 David Brydges Spectral color control method
US20020126305A1 (en) * 2001-01-12 2002-09-12 Keithley Douglas G. Image forming device fast draft print mode
US20030160960A1 (en) * 2002-02-25 2003-08-28 Minori Noguchi Apparatus and method for measuring alignment accuracy, as well as method and system for manufacturing semiconductor device
US6694883B2 (en) * 2000-08-31 2004-02-24 Heidelberger Druckmaschinen Ag Method of correcting local, machine-based inking errors in rotary printing machines
US6779454B2 (en) * 2001-10-04 2004-08-24 Maschinenfabrik Wifag Process and device for determining the position of a printed paper web
US20040190057A1 (en) * 2003-03-27 2004-09-30 Canon Kabushiki Kaisha Image forming system, method and program of controlling image forming system, and storage medium
US6801336B1 (en) * 1999-08-30 2004-10-05 Creo Inc. System and method for producing halftoned color separations for an output imaging device
US7009732B2 (en) * 1999-12-15 2006-03-07 Heidelberger Druckmaschinen Ag Method of producing from a first image data set, a second image data set matched to a real process, and a color management method
US7162954B1 (en) * 1999-08-02 2007-01-16 Maschinenfabrik Wifag Determination of cutting positions of web strands in a rotary printing press
US20070113748A1 (en) * 2004-05-03 2007-05-24 Heidelberger Druckmaschinen Ag Printing press and device for the inline monitoring of printing quality in sheet-fed offset printing presses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD274787A1 (de) * 1988-08-11 1990-01-03 Adw Ddr Kybernetik Inf Verfahren und anordnung zur bestimmung der flaechenbedeckung der primaerfarben in messsegmenten mehrfarbiger druckvorlagen einer offset-druckmaschine
DD274786A1 (de) * 1988-08-11 1990-01-03 Adw Ddr Kybernetik Inf Verfahren und anordnung zur ueberwachung der druckqualitaet mehrfarbiger rasterdruckvorlagen einer offset-druckmaschine
DE4237004C2 (de) * 1992-11-02 1996-07-04 Mohndruck Reinhard Mohn Ohg Verfahren zur Online-Messung der Einfärbung von Druckprodukten
US5903712A (en) * 1995-10-05 1999-05-11 Goss Graphic Systems, Inc. Ink separation device for printing press ink feed control
DE19617016A1 (de) * 1996-04-27 1997-11-27 Thomas Fuchs Verfahren zur Steuerung der Farbgebung einer Druckmaschine
DE19855177A1 (de) * 1998-11-30 2000-06-08 Windmoeller & Hoelscher Verfahren zur automatischen Umfangs- und Seitenregistereinstellung von Druckwalzen
DE10361936B4 (de) * 2003-12-29 2006-04-13 Lpcon Gmbh Vorrichtung zur Fehlererkennung an Druckbildern während des Druckprozesses

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6050192A (en) * 1993-06-25 2000-04-18 Heidelberger Druckmaschinen Ag Process and arrangement for controlling or regulating operations carried out by a printing machine
US6422142B2 (en) * 1998-01-27 2002-07-23 Man Roland Druckmaschinen Ag Ink regulation device for a painting machine
US7162954B1 (en) * 1999-08-02 2007-01-16 Maschinenfabrik Wifag Determination of cutting positions of web strands in a rotary printing press
US6801336B1 (en) * 1999-08-30 2004-10-05 Creo Inc. System and method for producing halftoned color separations for an output imaging device
US7009732B2 (en) * 1999-12-15 2006-03-07 Heidelberger Druckmaschinen Ag Method of producing from a first image data set, a second image data set matched to a real process, and a color management method
US20010024293A1 (en) * 2000-02-24 2001-09-27 Johan Ville Image data compression
US6694883B2 (en) * 2000-08-31 2004-02-24 Heidelberger Druckmaschinen Ag Method of correcting local, machine-based inking errors in rotary printing machines
US20020104457A1 (en) * 2000-12-06 2002-08-08 David Brydges Spectral color control method
US20020126305A1 (en) * 2001-01-12 2002-09-12 Keithley Douglas G. Image forming device fast draft print mode
US6779454B2 (en) * 2001-10-04 2004-08-24 Maschinenfabrik Wifag Process and device for determining the position of a printed paper web
US20030160960A1 (en) * 2002-02-25 2003-08-28 Minori Noguchi Apparatus and method for measuring alignment accuracy, as well as method and system for manufacturing semiconductor device
US20040190057A1 (en) * 2003-03-27 2004-09-30 Canon Kabushiki Kaisha Image forming system, method and program of controlling image forming system, and storage medium
US20070113748A1 (en) * 2004-05-03 2007-05-24 Heidelberger Druckmaschinen Ag Printing press and device for the inline monitoring of printing quality in sheet-fed offset printing presses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130184134A1 (en) * 2010-06-29 2013-07-18 Futec Inc. Box producing apparatus, inspection unit, and print register control method for a box producing apparatus
US20140090569A1 (en) * 2012-09-28 2014-04-03 Fujifilm Corporation Printing relief plate, printing relief plate producing apparatus, printing apparatus, printing pressure determining apparatus, and methods therefor
US9174427B2 (en) * 2012-09-28 2015-11-03 Fujifilm Corporation Printing relief plate, printing relief plate producing apparatus, printing apparatus, printing pressure determining apparatus, and methods therefor

Also Published As

Publication number Publication date
CN1931578A (zh) 2007-03-21
EP1759845B1 (de) 2011-12-07
EP1759845A3 (de) 2010-11-17
JP2007062374A (ja) 2007-03-15
CA2557680A1 (en) 2007-02-28
EP1759845A2 (de) 2007-03-07
DE102005041179A1 (de) 2007-03-01
KR20070026087A (ko) 2007-03-08

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MAN ROLAND DRUCKMASCHINEN AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHONERT, MICHAEL;SCHUSTER, ALFONS;REEL/FRAME:018556/0437

Effective date: 20060913

AS Assignment

Owner name: MANROLAND AG, GERMANY

Free format text: CHANGE OF NAME;ASSIGNOR:MAN ROLAND DRUCKMASCHINEN AG;REEL/FRAME:022024/0567

Effective date: 20080115

Owner name: MANROLAND AG,GERMANY

Free format text: CHANGE OF NAME;ASSIGNOR:MAN ROLAND DRUCKMASCHINEN AG;REEL/FRAME:022024/0567

Effective date: 20080115

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION